EP0349842A2 - Embranchement de guides d'ondes à sélection de polarisation - Google Patents

Embranchement de guides d'ondes à sélection de polarisation Download PDF

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Publication number
EP0349842A2
EP0349842A2 EP89111357A EP89111357A EP0349842A2 EP 0349842 A2 EP0349842 A2 EP 0349842A2 EP 89111357 A EP89111357 A EP 89111357A EP 89111357 A EP89111357 A EP 89111357A EP 0349842 A2 EP0349842 A2 EP 0349842A2
Authority
EP
European Patent Office
Prior art keywords
waveguide
section
plane
cutting plane
switch according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89111357A
Other languages
German (de)
English (en)
Other versions
EP0349842A3 (en
EP0349842B1 (fr
Inventor
Anton Ilsanker
Norbert Dr. Ephan
Werner Blaier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kathrein SE
Original Assignee
Kathrein Werke KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kathrein Werke KG filed Critical Kathrein Werke KG
Publication of EP0349842A2 publication Critical patent/EP0349842A2/fr
Publication of EP0349842A3 publication Critical patent/EP0349842A3/de
Application granted granted Critical
Publication of EP0349842B1 publication Critical patent/EP0349842B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
    • H01P1/161—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion sustaining two independent orthogonal modes, e.g. orthomode transducer

Definitions

  • the invention relates to a waveguide polarization switch according to the preamble of claim 1.
  • a waveguide polarization switch for separating orthogonally linearly polarized electromagnetic waves has become known, for example, from DE-OS 26 51 935. It consists of an input-side waveguide section of square cross section, in which preferably H 10 and H01 waves are to be guided, which are linearly and orthogonally polarized with respect to one another with respect to their field strength vectors. In order to be able to separate the two polarizations, there are two opposing walls of the waveguide section recessed rectangular coupling window, each of which branches off a waveguide arm. Both branching arms are then combined again by interposing manifolds in a common broadband branch.
  • a somewhat more compact waveguide polarization switch is also known from DE-33 45 689 A1, in which the lateral waveguide arms branch off from the waveguide section at an acute angle and, after switching on an E-plane bend, to that through the longitudinal axis of the waveguide section given main direction are approximately parallel and converge in the broadband branch after switching on another, S-shaped E-level elbow.
  • a polarization soft to mill from two solid pieces that can be joined along their plane of symmetry.
  • a corresponding cast body is separated in the common central plane formed by the elbow and the feeding waveguide section and in both halves the feeding waveguide section guiding both polarizations and the two waveguide branches leading away from it for the continuation of the differently polarized electromagnetic waves including a short circuit piece and one on the opposite side to be inserted coupling window.
  • the present invention remarkably creates the possibility not previously known ter way to assemble a waveguide polarization switch from, for example, two castings.
  • the mold parts can be made, for example, of zinc, brass or, for example, also of die-cast aluminum.
  • the two components of the polarization switch are not separated in the plane formed jointly by the elbow and the feeding waveguide section, but rather are separated along a cutting plane running transversely thereto.
  • This cutting plane can now be arranged in the region of the coupling window lying transversely to the longitudinal extent of the coupling window in such a way that the cutting plane in principle leads through the elbow or angle in the H-elbow or angle and / or through the short-circuit piece arranged below the coupling window .
  • a waveguide that can be connected here for example a waveguide that is square or round in cross section, e.g. one H10 and H01 or two H11 waves are transmitted, that is, two waves whose polarization planes are offset by 90 ° to one another in the direction of propagation.
  • a short-circuit step or bridge 9 which runs transversely to the direction of propagation 7, is arranged below. Behind it, the further extending first waveguide branch 11 is reduced in height while the width of the waveguide remains the same, i.e. usually halved, so that here only the vertically polarized electromagnetic wave, i.e. H. a H10 wave is transmitted further.
  • the lower short-circuit stage 9 and an upper bridge 10 which reduces the cross-sectional height are shown in broken lines in FIG. 2.
  • a rectangular coupling opening or a coupling window 13 extends in the longitudinal direction centrally above the short-circuit stage 9.
  • the second waveguide branch 15 extends, which via a bend or an angle, in the exemplary embodiment shown an angle 17, to a polarization gate 21, which is above of the first polarization gate 19 connected to the first waveguide branch 11.
  • the angle 17 is an H-bend.
  • the first and second component 1 'and 1 ⁇ is separated by the cutting plane 23 which runs between the components and is shown in broken lines in the exemplary embodiment.
  • a projection 25 belonging to the elbow or angle 17 is shown, which protrudes beyond the actual cutting plane 23 and is nevertheless part of the first, i.e. in Figure 1 left component 1 'is the polarization switch.
  • the second component 1 ⁇ has a corresponding recess 27, into which the remaining projection 25, which forms part of the angle 17, engages when the components are joined together.
  • the first as well as the second component 1 'or 1 ⁇ can be formed in the die-casting process with walls tapering slightly towards the exits. This makes it possible, in the die casting process, to move apart the molds and punches required for this purpose without mutual contact and friction in order to expose the components produced in this way. Warping already proves to be problematic here if individual walls would run directly in the direction of pull of the mold and stamp, which is why at least slightly widening wall sections are desired in the pull-out direction.
  • the exemplary embodiment shown in FIG. 4 is a waveguide polarization switch which is similar in principle and is only shown in a vertical longitudinal section.
  • the basic cutting plane 23 is arranged such that it does not cut the upper angle 17 and, in the case of a bend provided here, the bend itself.
  • a corresponding projection 25 ' is formed in the short circuit stage 9.
  • the projection 25 'belonging to the short-circuit stage 9' is designed to belong to the left-hand first component 1 'shown in FIG. 5, although in the assembled position it projects beyond the cutting plane 23 into the second component 1'.
  • the sectional plane 23 could be arranged exactly at the beginning of the short-circuit stage 9, so that in this case only the protrusion 25, as an outgoing part of the angle or Elbow 17 over the cutting plane 23 projecting to the first component 1 'belonging would have to be formed.
  • FIG. 5 will now be used to explain in the embodiment according to FIG. 5 that an arrangement of the cutting plane in a central position relative to the embodiment according to FIGS. 1 to 4 or according to FIG 5 could be arranged so that both the upper and the lower projection 25 and 25 'are each associated with the opposite component 1' and 1 ⁇ and alternately protrude into the other component when joining over the actual theoretical cutting plane 23 .
  • the undercut 29 or 29 'behind the projections does not have to run back at right angles to the cutting plane 23, but can also run at an acute angle to the cutting plane 23, as shown in broken lines in Fig. 6a and 6b with the reference numerals 31 and 31 'is indicated.
  • tapered separating surfaces to the cutting plane 23 could also be offset such that each of the projection 25 or 25 'the further course of the separating plane between the two components 1' and 1 'did not return to the actual theoretical cutting plane 23, but parallel to the outside runs as shown in dashed lines in Figure 6a and Figure 6b with reference numerals 33 and 33 '.
  • the two components 1 'and 1 ⁇ are centered over projections 37 which are offset from the actual waveguides and which engage in corresponding blind holes 39 on the other component. Furthermore, further openings or bores are provided through which cylinder screws can be inserted and screwed on by unscrewing nuts.
  • both the opposite sections of the waveguide 3 and the subdivided waveguide branches 11 and 15 are formed as contact surface areas 41 which are slightly raised relative to the remaining side surface areas.
  • the individual waveguide line sections are provided with precisely fitting devices to achieve a snug fit and the two waveguide components can be produced with such accuracy and tolerance as die-cast or extruded parts that u.
  • the actual contact surface areas 41 are not necessary to be reworked, this can nevertheless be carried out without problems at these points, since the actual contact surface areas 41 protrude somewhat. But despite any reworking that may be necessary here, the manufacturing costs are far lower than in the prior art, since the waveguide sections do not otherwise have to be worked out. Any necessary reworking is of little importance.
EP89111357A 1988-07-07 1989-06-22 Embranchement de guides d'ondes à sélection de polarisation Expired - Lifetime EP0349842B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3822981 1988-07-07
DE3822981A DE3822981A1 (de) 1988-07-07 1988-07-07 Hohlleiter-polarisationsweiche

Publications (3)

Publication Number Publication Date
EP0349842A2 true EP0349842A2 (fr) 1990-01-10
EP0349842A3 EP0349842A3 (en) 1990-08-29
EP0349842B1 EP0349842B1 (fr) 1993-12-29

Family

ID=6358139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111357A Expired - Lifetime EP0349842B1 (fr) 1988-07-07 1989-06-22 Embranchement de guides d'ondes à sélection de polarisation

Country Status (3)

Country Link
EP (1) EP0349842B1 (fr)
DE (2) DE3822981A1 (fr)
ES (1) ES2048791T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7750763B2 (en) 2006-07-20 2010-07-06 Kathrein-Werke Kg Waveguide bend having a square shape cross-section

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4225898C1 (de) * 1992-08-05 1994-02-17 Kathrein Werke Kg Ein eine Polarisationsweiche und eine Konverteranordnung umfassendes Empfangs- oder Speisesystem
DE19961237A1 (de) * 1999-12-18 2001-06-21 Alcatel Sa Antenne zur Abstrahlung und zum Empfang elektromagnetischer Wellen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2057237A5 (fr) * 1969-08-07 1971-05-21 Thomson Csf
EP0178259A2 (fr) * 1984-10-10 1986-04-16 HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE Guide d'ondes avec une source primaire
EP0218549A2 (fr) * 1985-10-11 1987-04-15 HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE Dispositif à guide d'ondes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2651935B2 (de) * 1976-11-13 1980-09-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Breitbandige Polarisations-Weiche
GB1591719A (en) * 1976-12-21 1981-06-24 Arconi Co Ltd Orthogonal mode transducers
DE3345689A1 (de) * 1983-12-16 1985-07-11 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Breitband-polarisationsweiche

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2057237A5 (fr) * 1969-08-07 1971-05-21 Thomson Csf
EP0178259A2 (fr) * 1984-10-10 1986-04-16 HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE Guide d'ondes avec une source primaire
EP0218549A2 (fr) * 1985-10-11 1987-04-15 HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE Dispositif à guide d'ondes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7750763B2 (en) 2006-07-20 2010-07-06 Kathrein-Werke Kg Waveguide bend having a square shape cross-section

Also Published As

Publication number Publication date
DE3822981C2 (fr) 1989-11-23
EP0349842A3 (en) 1990-08-29
DE58906534D1 (de) 1994-02-10
ES2048791T3 (es) 1994-04-01
DE3822981A1 (de) 1988-12-22
EP0349842B1 (fr) 1993-12-29

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